Keyword: «basalt fiber»

The actual problem of material science in obtaining composite elastomers is reinforcement by high-modulus fibers with increased technological and operational properties. The most widely known reinforcing filler is basalt fiber. The use of this filler raises the question of increasing the adhesion of fibers with the rubber matrix. The paper presents a method of increasing adhesion between the adhesive and the substrate by surface treatment of the reinforcing basalt fabric with a rubber mixture pre-dissolved in phenylmethane (toluene). The obtained material was studied for elastic-strength properties, where the wear resistance decreased by 12% and the hardness increased by 5%. The microstructure of low-temperature chips and tested specimens were also analyzed. According to the results of the tensile tests, there is a general trend of increasing the tensile strength values by 1.3 times and decreasing the relative elongation values by up to 2 times compared to the reinforced rubber. In the delamination test, this material showed an increase of 16.4%.

The influence of basalt fiber and the type of its laying on the strength properties of a composite material based on fresh ice has been studied. Regularities of damage accumulation in ice composite material are analyzed using the acoustic emission method. The experiments used massive samples obtained under natural conditions by layer-by-layer freezing. It is shown that with a doubling of the filler content, the bending strength of the ice composite increases by 1.5 times, and its durability increases. The scale effect of strength is discussed.

This work presents the results of an assessment of the effectiveness of a polymer composition for the bioprotection of materials based on basalt fiber against fungal attack. An advantage of the proposed method is its simplicity and cost‑effectiveness, since its implementation does not require complex technological equipment or expensive components. The protective polymer composition obtained and used in the method increases the resistance of basalt‑fiber reinforced plastic reinforcement in a mycological environment and can be used to protect materials from biological damage when in contact with soil and soilborne microscopic fungi.

This paper investigates the adhesive strength of elastomeric matrix materials and reinforcing fabrics. The production of materials based on two incompatible components to obtain a composite and, in turn, improve its physical and mechanical properties, is a pressing issue. The effect of surface treatment on high-modulus fabrics and rubbers based on butadiene rubber SKD-B was studied. Two methods were used to increase adhesive strength. The first method involved treating the surface of basalt, glass, and carbon fabrics with a rubber mixture to improve contact with the rubber layers. The second method involved applying a primer and Chemocil adhesive, which is used to bond rubber to metal. During the delamination test, an increase in adhesive strength compared to the original rubber was observed in the sample with Chemocil surface treatment.